That was my concern, as well. I think you'd agree that all reality shows don't fit that Jersey Shore model, though, and I actually have more respect for pawn shops after seeing how smart and well versed in history the owner of Pawn Stars is. I don't think all reality tv is filled with flaming retards, but there are certainly some... you're right.
It all depends on the staff, which is where my apprehension kicks in. I'm concerned that they'll go with a shop with some stoners who don't know anything about the struggle it has taken to get us to this point.
And I can tell you, based on previous projects they've done, that a show like the one you described would be a huge departure from what they've done in the past. Doesn't mean it isn't possible, though. I still don't know where I fall on this.